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memory issue on a Compaq DL360


I am hoping to get some advice on a problem I have with a compaq DL360 I
have a work.

I have just install it with 3.2-stable using a generic kernel and all is
well apart from a strange memory issue. I noticed when I was running top
the about of free memory was much less than I expected.

19 processes:  1 running, 18 idle
CPU states:  0.2% user,  0.0% nice,  0.0% system,  0.0% interrupt, 99.8%
Memory: Real: 4916K/245M act/tot  Free: 1768K  Swap: 0K/498M used/tot

The box has 256M installed. I also noticed an error that appeared just
after the kernel loaded but did not appear in dmesg so I put on a
console cable for a closer looked. Below is the some more info from the
boot prompt and the dmesg. Please note the sizes of real and avail mem,
and the size reported of the buffers.

Any advice would be great!



boot> mac memory
Region 0: type 1 at 0x0 for 638KB
Region 1: type 2 at 0x9f800 for 2KB
Region 2: type 2 at 0xf0000 for 64KB
Region 3: type 1 at 0x100000 for 261104KB
Region 4: type 3 at 0xfffc000 for 16KB
Region 5: type 2 at 0xfec00000 for 64KB
Region 6: type 2 at 0xfee00000 for 64KB
Region 7: type 2 at 0xfff80000 for 512KB
Region 8: type 1 at 0x0 for 0KB
Low ram: 638KB  High ram: 261104KB
Total free memory: 261742KB

booting hd0a:/bsd: 4059136+122880+826144+[147132+185964]=0x618050
entry point at 0x100020

booting hd0a:/bsd: 4059136+122880+826144+[147132+185964]=0x618050
entry point at 0x100020
[ using 333100 bytes of bsd a.out symbol table ]
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California.  All rights
Copyright (c) 1995-2002 OpenBSD. All rights reserved.

OpenBSD 3.2-stable (GENERIC) #0: Tue Dec 10 10:56:44 EST 2002
cpu0: Intel Pentium III (Coppermine) ("GenuineIntel"
686-class) 798 MHz
real mem  = 267988992 (261708K)
avail mem = 27811840 (27160K)
using 4278 buffers containing 228249600 bytes (222900K) of
mainbus0 (root)
bios0 at mainbus0: AT/286+(00) BIOS, date 12/31/99, BIOS32
rev. 0 @ 0xf0000
pcibios0 at bios0: rev. 2.1 @ 0xf0000/0x2000
pcibios0: PCI BIOS has 6 Interrupt Routing table entries
pcibios0: no compatible PCI ICU found
pcibios0: Warning, unable to fix up PCI interrupt routing
pcibios0: PCI bus #0 is the last bus
bios0: ROM list: 0xc0000/0x8000 0xc8000/0x4000!
0xe8000/0x6000 0xee000/0x2000!
pci0 at mainbus0 bus 0: configuration mode 1 (no bios)
pchb0 at pci0 dev 0 function 0 "ServerWorks CNB20LE Host"
rev 0x05
pchb1 at pci0 dev 0 function 1 "ServerWorks CNB20LE Host"
rev 0x05
pci1 at pchb1 bus 3
fxp0 at pci1 dev 4 function 0 "Intel 82557" rev 0x08: irq 5,
address 00:50:8b:e1:b7:da
inphy0 at fxp0 phy 1: i82555 10/100 media interface, rev. 4
fxp1 at pci1 dev 5 function 0 "Intel 82557" rev 0x08: irq 7,
address 00:50:8b:e1:b7:d9
inphy1 at fxp1 phy 1: i82555 10/100 media interface, rev. 4
cac0 at pci0 dev 1 function 0 "Symbios Logic 53c1510" rev
0x02: irq 3 Compaq Integrated Array
scsibus0 at cac0: 1 targets
sd0 at scsibus0 targ 0 lun 0: <Compaq, RAID1 volume #0, > SCSI2 0/direct
sd0: 17359MB, 4357 cyl, 255 head, 32 sec, 512 bytes/sec, 35553120 sec
vga1 at pci0 dev 3 function 0 "ATI Mach64 GV" rev 0x7a
wsdisplay0 at vga1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
"Compaq Netelligent ASMC" rev 0x00 at pci0 dev 4 function 0 not
pcib0 at pci0 dev 15 function 0 "ServerWorks ROSB4 SouthBridge" rev 0x4f
pciide0 at pci0 dev 15 function 1 "ServerWorks OSB4 IDE" rev 0x00: DMA
atapiscsi0 at pciide0 channel 1 drive 0
scsibus1 at atapiscsi0: 2 targets
cd0 at scsibus1 targ 0 lun 0: <COMPAQ, CD-224E, 9.0C> SCSI0 5/cdrom
cd0(pciide0:1:0): using PIO mode 4, DMA mode 2
isa0 at pcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pmsi0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pmsi0 mux 0
pcppi0 at isa0 port 0x61
midi0 at pcppi0: <PC speaker>
sysbeep0 at pcppi0
npx0 at isa0 port 0xf0/16: using exception 16
pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
pccom0: console
fdc0 at isa0 port 0x3f0/6 irq 6 drq 2
fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
biomask c048 netmask c0e8 ttymask d0ea
pctr: 686-class user-level performance counters enabled
mtrr: Pentium Pro MTRR support
dkcsum: sd0 matched BIOS disk 80
root on sd0a
rootdev=0x400 rrootdev=0xd00 rawdev=0xd02